4th elementary symmetric function of C(n,0), C(n,1), ..., C(n,[ n/2 ]).
A025139
4th elementary symmetric function of C(n,0), C(n,1), ..., C(n,[ n/2 ]).
Terms
- a(0) =1800a(1) =5145a(2) =1047424a(3) =3973536a(4) =410606100a(5) =1876011225a(6) =137593764792a(7) =717486692065
External references
- oeis: A025139